Jack and Jim are playing an interesting stone game. At the beginning of the game there are N pile(s) of stones. Each pile has Pi (i = 1..N, 1 ≤ Pi ≤ 2 ∗ 10^9) stones. They take turns to take away some
Stone Game II 1.题目含义: 一共有n堆石子,每堆石子个数用x表示。现在你可以选择一堆移除某些石子,但要剩余k个石子,确保k在[1,n-1]这个区间内。 移除石子后,还要加入一些石子,加入石子的个数为:k^x,当然你也可以使用技能使得加入的石子个数变为(2k)^x。不过每个人每局游戏只能使用一次技能。问最后先手是否可以取得胜利,可以的话输出Yes,否则输出No。 2.思
You have a number of stones with known weights w1, …, wn. Write a program that will rearrange the stones into two piles such that weight difference between the piles is minimal. Input
题目链接:http://codeforces.com/problemset/problem/226/B B. Naughty Stone Piles There are n piles of stones of sizes a1, a2, ..., a n lying on the table in front of you. During one move you can take